about summary refs log tree commit diff
diff options
context:
space:
mode:
-rw-r--r--pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix1
1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
index 3721bb724f57..8cc498638b5f 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
@@ -70,6 +70,7 @@ self: super: {
   lens = self.lens_4_19_2;
   optics-core = self.optics-core_0_3;
   repline = self.repline_0_3_0_0;
+  singletons = self.singletons_2_7;
   th-desugar = self.th-desugar_1_11;
 
   # `ghc-lib-parser-ex` (see conditionals in its `.cabal` file) does not need